Latest News

29 January, 2018

Q4OS 3.1, Centaurus

read more ...


29 November, 2017

Windows10 loves Q4OS

read more ...


10 October, 2017

Q4OS 2.4, Scorpion

read more ...


Follow us

Live CD

Live media allow users to get a quick Q4OS experience, or try it out on a real hardware without installation. If satisfied, an optional installer is available.


This Long Term Support release codenamed 'Scorpion' gives you five years of security patches and updates, it will be supported until October 2022 at least. The minimal HW requirements for Q4OS is defined as Pentium 300MHz CPU / 128MB RAM / 3GB disk.

Installation CD

If you are looking for pure installation media for personal computers, even for older i386 systems without PAE extension, download the installation CD below.



Installer for Windows

Windows installer puts Q4OS alongside Windows in an easy way, you will not have to modify your existing Windows installation. The installer is Windows 7/8/10 compatible.



Specific hardware - Pinebook, Pine64, Raspberry Pi

Download images below to get a poweful desktop optimized for the Pine64 or Raspberry Pi family hardware.



ARM port

Q4OS for ARM devices runs on wide variety of hardware equipped with 32/64bit ARM processors, including Chromebooks, tablets, single board computers, embedded devices and more.



Software downloads

Get Q4OS applications from this section. Installation is pretty easy, download and save installer, doubleclick it from filemanager and follow setup instructions.

Mozilla Firefox ESR ... Mozilla's web browser, ESR version.
Blueman ... bluetooth manager for laptops with integrated bluetooth device.
Dropbox ... Dropbox.
Skype ... Skype.
Teamviewer ... Teamviewer.
Google Chrome ... Google's web browser.
Chromium ... Chromium web browser.
Chromium ... Chromium web browser, RPI edition.
Libre Office ... professional quality office suite.
Multimedia codecs ... high quality video and audio codecs.
Virtualbox Guest Additions ... optimized drivers for those who run inside Virtualbox.
Update Manager ... software updates notifier and manager.


Other downloads

If you are looking for older supported Q4OS releases, you can download from Legacy releases page. For the newest Q4OS testing images, check the dedicated Testing releases page.

Files details

md5sum ; file:
909f145dfdf2afcd81b5ba6f53e4ae3f q4os-2.4-x64.ra.iso
cef77d4e1f58c1f5d3343b9c92f60f07 q4os-2.4-i686pae.ra.iso
389e0070364e6a02c86273163925d464 q4os-2.4-x64-instcd.ra.iso
305a38d78490dc8ebe67b6cc3df94576 q4os-2.4-i386-instcd.ra.iso
67308e583aaf827fdca9ab5681752e2f q4os-2.4-pinebook.r3.zip
f82482c0f72fbf9a2ade04cf98ef22ec q4os-2.4-pine64.r3.zip
c3f502d09feae127b4076384996c0f8c q4os-1.8-rpi.r1.zip
c79ff438e5c54fc606dd47c5dc034686 q4os-winsetup.exe